EP4208299A1 - Schlagzylinder - Google Patents
SchlagzylinderInfo
- Publication number
- EP4208299A1 EP4208299A1 EP21810944.5A EP21810944A EP4208299A1 EP 4208299 A1 EP4208299 A1 EP 4208299A1 EP 21810944 A EP21810944 A EP 21810944A EP 4208299 A1 EP4208299 A1 EP 4208299A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- compressed air
- impact
- flange
- impact cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims description 59
- 238000009527 percussion Methods 0.000 claims description 56
- 238000003860 storage Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 210000002159 anterior chamber Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
- B25D9/08—Means for driving the impulse member comprising a built-in air compressor, i.e. the tool being driven by air pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
Definitions
- the invention relates to an impact cylinder for cleaning furnaces or heat exchangers, in particular for removing deposits on the built-in components.
- Such a percussion cylinder comprises a cylindrical piston jacket, which encloses an inner piston chamber, is closed at a front end by a front plate or by a front percussion cylinder plate and at a rear end by a cylinder cover or by a rear percussion cylinder plate.
- a piston is arranged in the stationary piston chamber so that it can move relative to it and can be moved longitudinally along a longitudinal axis between a front impact position and a rear rest position.
- the piston divides the piston chamber into a front chamber facing the front impact cylinder plate and a rear chamber facing the rear impact cylinder plate.
- a fluid preferably compressed air
- An elastic control membrane which forms a valve, controls whether the compressed air reservoir is filled with compressed air or whether the piston is actuated, i.e. an impact is carried out, depending on the compressed air applied via the connection.
- an anvil, a percussion rod or the like is accommodated in a relatively movable manner, on which the piston strikes when the percussion is triggered in the percussion position.
- a compression spring compressed by the impact and extending between the front impact cylinder plate and a front side of the piston in the front chamber moves the piston back into the rear rest position.
- Such a percussion cylinder is known, for example, from the patent DE 10 2009 051 089 B4 of the applicant's predecessor company.
- the percussion cylinder includes an inner, cylindrical piston inner jacket, which encloses an inner piston chamber in which a piston is mounted so that it can move along a longitudinal axis between a forward percussion position and a retracted rest position.
- the inner piston skirt is bordered or surrounded by a coaxially arranged, cylindrical outer piston skirt, so that an annular space is formed between the inner piston skirt and the outer piston skirt, which acts as a ring accumulator.
- the compressed air flows through a connection past a flexible control membrane, which closes access to the piston chamber, past the surrounding ring accumulator.
- the compressed air reservoir serves to absorb and collect the fluid flowing in via the connection, preferably compressed air, and then, after releasing an impact through the shut-off valve with the control membrane, to allow it to flow directly into the rear chamber of the piston chamber. thus throwing the piston against the anvil in the front impact cylinder plate, compressing the compression spring, so that the impact is released on impact. The piston is then pushed back into the rear end of the piston chamber moves to the rear rest position. Then the process starts again and the compressed air reservoir is again filled with fluid, preferably compressed air.
- the air escapes at the connection.
- the pressure conditions change in such a way that the control membrane deforms and releases access to the rear chamber of the piston chamber.
- the control membrane blocks the outlet of the compressed air in the compressed air accumulator designed as a ring accumulator via the connection .
- the deformation of the control diaphragm opens the way to a rear chamber of the piston chamber.
- Such an impact cylinder is used, for example, to remove smoke gas residues in smoke gas cleaning systems, for which purpose the impact cylinder is arranged on the outside of a smoke gas duct and the impact cylinder hits the outside of the smoke gas duct with its impact rod or anvil, in order to remove deposits from the inside to be replaced, which significantly reduce the efficiency of systems .
- the design described requires the inner shell and this enclosing outer shell to create the annular space.
- the structure is relatively complex.
- the known design requires two large pipes, namely an inner jacket and an outer jacket, which naturally have to have different diameters.
- Known percussion cylinders require relatively large compressed air reservoirs of about 3 liters, which requires a relatively large amount of air that is expensive to produce.
- the ring accumulator thus extends over the entire length of the piston chamber, i.e. encloses the cylinder chamber circumferentially, a relatively large area around the inner piston chamber is necessary for the ring accumulator, which means that there is a relatively large lateral distance or gap between two adjacent impact cylinders conditionally and why the storage volume is also very large.
- the invention is based on the object of at least partially avoiding the disadvantages described and, in particular, of providing a percussion cylinder which is of simple construction and works particularly efficiently.
- this is done by a preferably sealing flange, which forms a partition wall between the piston chamber and the compressed air chamber, being arranged at a rear end of the piston skirt, that the compressed air reservoir is arranged behind the flange and that a flange opening of the flange has a - guide tube is arranged, which extends from the flange opening to a rear end of the compressed air reservoir.
- a sealing flange is arranged between a piston jacket enclosing the piston chamber and a compressed air reservoir jacket enclosing the compressed air reservoir, which therefore separates the piston chamber from the compressed air reservoir, so that the compressed air reservoir is located directly extends behind this flange, quasi in continuation of the piston chamber to the rear.
- a flange opening penetrating the flange is preferably provided in the center, in which a feed tube is arranged or seated ie extends from this flange opening to a rear end of the compressed air reservoir.
- the feed pipe thus has approximately the length of the compressed air reservoir in the longitudinal direction.
- the compressed air flows in through the connection and presses the control membrane forwards against the feed tube and, after the rear end of the feed tube has been closed, then presses its way through the outer peripheral edge between the control membrane and the rear impact cylinder plate or the cylinder cover into the compressed air reservoir immediately behind it.
- the feed tube thus acts as a contact surface for the elastic control membrane when pressure is applied, ie it supports the control membrane when the compressed air accumulator is being filled.
- connection is depressurized, which is done in the simplest case by opening a valve.
- the rear side of the control membrane now rests against a bulging inner surface of the rear impact cylinder plate/cylinder cover and thus suddenly opens up access through the feed tube, so that the compressed air can flow through the feed tube into the piston chamber and the impact occurs Advancing the piston can trigger.
- the compressed air reservoir is therefore no longer arranged circumferentially around the piston skirt, but rather along the longitudinal axis of the percussion cylinder immediately behind the piston chamber, specifically separated by the sealing flange that seals the piston chamber at the rear end.
- the compressed air is no longer stored in a ring accumulator or external compressed air accumulator as in the prior art, but in the immediate vicinity of the control membrane.
- This shortening of the paths for the fluid, in particular the compressed air enables a smaller and lighter design of the percussion cylinder with the same performance. Or to put it another way: while retaining the same size, the percussion cylinder is more powerful than in the prior art.
- the volume within the compressed air reservoir can be easily influenced and changed.
- a larger supply pipe also ensures that the fluid, preferably compressed air, flows more quickly from the compressed air reservoir into the rear chamber when the impact is triggered.
- the impact energy to be achieved by the impact cylinder depends on the time in which the air can flow from the compressed air reservoir into the rear chamber of the piston chamber. If the air takes too long, the piston has already arrived at the front ram at low speed and the slow compressed air then only flows in because the paths for the compressed air are relatively long in the prior art. In the state of the art, hoses are sometimes required for connection to external compressed air storage, and the same problem can occur.
- the feed pipe extending backwards from the flange opening implements the shortest path for the compressed air with large free cross-sections. Since the diameter of the feed pipe can be 30 to 50 percent, in particular 33 percent, of the diameter of the compressed air reservoir, the fluid or When the impact is triggered, the air flows much faster into the rear chamber of the piston chamber, so that the piston is accelerated to the required target speed within a shorter time. Therefore, compared to the prior art, the anterior chamber can be shortened by up to 10 percent with the same performance entire percussion cylinder shortened and this in turn made lighter .
- the piston can thus be accelerated to a predetermined speed in a shorter time with compressed air content, which shortens the front chamber and thus shortens the structure and makes it lighter.
- the compressed air reservoir is therefore significantly smaller in the invention compared to the prior art, preferably 80 to 90 percent smaller. Since multiple beats are to take place in the shortest possible time, a smaller memory ensures shorter filling times, which enables smaller beat intervals.
- the outer casing had to be made of stainless steel because of the necessary strength.
- the piston and the compressed air storage casing i.e. the casing surrounding the compressed air storage unit, are made from identical material, particularly preferably from a light aluminum tube with the same diameter and the same wall thickness, particularly preferably with an outer diameter of 105 mm and a wall thickness of 2.4 mm for all power ranges.
- the performance is varied by changing the length of the compressed air reservoir. This is much easier than changing other components.
- the design according to the invention allows the weight of an impact cylinder to be reduced by up to 60 percent with the same performance.
- a typical percussion cylinder no longer weighs 25 kilos as it used to, but now only 15 kilos. This makes a significant difference when transporting and installing the percussion cylinder, because sometimes 500 such cylinders have to be installed on the outside of a boiler.
- the front impact cylinder plate and rear impact cylinder plate sometimes also simply called “flanges", which are held together with the screw bolts, can thus have a smaller diameter, which in turn results in a weight reduction.
- the impact cylinders according to the invention can thus be mounted in series with very small distances from one another on boiler walls.
- the smaller diameter also improves accessibility. If the impact cylinders are used in series, hundreds of these cylinders can be installed.
- a particular advantage of the invention can be seen in the fact that instead of four seals as before, only two seals are required for the axial sealing of the compressed air reservoir at the front end facing the piston chamber and at the rear end facing the valve. This combined simplifies the assembly and testing time and reduces the susceptibility to errors.
- a further advantage of the design according to the invention is that there are no seals between the front impact cylinder plate and the piston skirt and at the rear end between the piston skirt and the rear impact cylinder plate.
- the compressed air reservoir is sealed at the front via a sealing lip projecting radially outwards on the outer peripheral edge of the flange and at a rear end via a sealing ring or the like used on the cylinder cover.
- a fluid-permeable membrane support at a rear end of the feed tube.
- This membrane support increases the contact surface for the control membrane and prevents the elastic membrane from being pushed or pulled in into the rear opening of the feed pipe even better when the compressed air reservoir is being filled.
- the diaphragm support thus functions as an additional contact surface for the elastic control diaphragm when pressure is applied.
- the membrane support is designed in such a way that it allows the fluid to flow through easily, for which purpose it is designed in the form of a lattice or sieve.
- the area of the openings in the membrane support is particularly preferably 80 to 90 percent of the total area of the membrane support.
- the control membrane is preferably seated in a membrane seat of the rear percussion cylinder plate/of the cylinder cover, which is preferably designed as a depression or a shoulder adapted to the size of the control membrane.
- a rear pressure chamber is preferably formed in the rear percussion cylinder plate by forming a recess or curvature adjoining the membrane seat to the rear, which pressure chamber can be closed by the control membrane seated in the membrane seat.
- the membrane support is preferably designed in the manner of a sieve, that is to say with a plurality of holes. So that the fluid can flow through the membrane support particularly well, the size of the passages or holes is significantly larger than the closed area of the membrane support, and the holes particularly preferably make up about 90 percent of the total area of the membrane support.
- the membrane support is placed on a collar at the rear end of the feed tube, in particular a collar that protrudes radially outwards in a ring shape, on which the outer tipping surface of the membrane support rests or is set.
- seals between the control membrane and the feed tube are realized when the feed tube has a sealing lip for abutting against a diaphragm front side of the control diaphragm.
- This sealing lip is preferably formed around the circumference of the collar and extends further to the rear in the longitudinal direction, so that the sealing lip extends over the surface of the diaphragm support or of the collar protrudes and the control membrane can act together with the sealing lip to create a good seal .
- the sealing lip can consist of an elastic material, which improves the tightness between the control membrane and the sealing lip.
- this can be done by manufacturing it using a 2-component plastic injection molding process.
- piston jacket which encloses the piston chamber
- compressed air jacket which encloses the compressed air reservoir
- the preferred material is aluminum for weight reasons.
- the two lateral surfaces which are preferably designed as pipe sections of different lengths, namely a longer pipe section for the piston chamber and a shorter pipe section for the compressed air reservoir, have the identical diameter and the identical wall thickness.
- Sufficient is e.g. B. a wall thickness of 2.5 mm.
- percussion cylinders are usually attached to the outside of a wall, e.g. B. arranged on the wall of a combustion chamber, with the impact cylinder then hitting a relatively movable rod mounted in the wall in the axial direction with its anvil or the striking rod, which in turn acts on the front side against a plate, a block or the like in the collector of a combustion chamber .
- a relatively movable rod mounted in the wall in the axial direction with its anvil or the striking rod, which in turn acts on the front side against a plate, a block or the like in the collector of a combustion chamber .
- several percussion cylinders can be arranged on a carriage which can be moved to different locations in relation to the stationary wall.
- FIG. 1 shows a longitudinal section of a first embodiment of the percussion cylinder according to the invention with a percussion rod when the reservoir is being filled with a working fluid in the starting position;
- FIG. 2 shows the percussion cylinder according to FIG. 1 with the reservoir filled
- FIG. 3 shows the percussion cylinder according to FIG. 1 in percussion position
- FIG. 4 shows an isometric longitudinal section of a second embodiment of a percussion cylinder with an anvil in the starting position.
- the proposed percussion cylinder essentially consists of a cylindrical piston skirt 2 surrounding a longitudinal axis, which surrounds a piston chamber 4 and is closed at its front end by a front percussion cylinder plate 6 and at its rear end by a flange 18, behind which is then arranged a compressed air storage casing 22, which is then closed at the rear by a rear percussion cylinder plate 8.
- a fluid preferably compressed air, can be supplied to the percussion cylinder via a compressed air connection 10 .
- a percussion rod 26 is guided in a longitudinally displaceable manner by means of one or more slide bearings, which is attached to a piston 14 at a rear end and protrudes from the front percussion cylinder plate 6 with a front end.
- a front sleeve 30 encloses a through-opening for the percussion rod 26 in the front percussion cylinder plate 6 at a radial distance to form an annular space.
- a compression spring 24 which extends between the wall sleeve 30 and a piston 14 and encloses the striker rod 26 , is seated in this annular space between the wall sleeve 30 and the passage opening.
- This piston 14 is guided in a longitudinally displaceable manner within the piston chamber 4 via plain bearings and can also be sealed against the piston jacket 2 in a sealing manner via a sealing ring arranged in an outer peripheral groove of the piston 14 .
- an anvil 40 is arranged in the front plate 6 so that it can be displaced longitudinally, and the piston 14 hits this anvil when the percussion is triggered.
- the piston 14 can have a bore in the center of its front side, in which a mandrel 38 is accommodated, e.g. B. welded , pressed or glued .
- the mandrel 38 which has a smaller cross-section than the bore, serves to fix the compression spring 24, which extends between the piston 14 and a radially projecting collar 41 on the inner end of the anvil 40 facing the piston chamber 4 and which acts as a return spring for the piston 14 serves .
- the compression spring 24 thus extends between the mandrel 38 in the front side of the piston 14 and a mandrel that protrudes radially Collar 40a on the anvil 40, which is received in a through opening in the front percussion cylinder plate 6 so that it can be displaced longitudinally.
- the piston 14 divides the piston chamber 4 into a front chamber, which faces the front plate 6, and a rear chamber, which faces a—rear—compressed air accumulator 16.
- This compressed air reservoir 16 is arranged in the axial direction behind the piston chamber 4 , specifically separated by a flange 18 which has a radially outwardly projecting sealing lip 20 on its outer peripheral edge.
- This compressed air reservoir is circumferentially surrounded by a circular-cylindrical compressed air reservoir jacket 22 .
- the compressed air reservoir 16 is sealed at the front end by the sealing lip 20 on the outer peripheral edge of the flange 18 and at the rear end by a sealing lip on the inside of the rear percussion cylinder plate 8 .
- seals are no longer necessary in the piston chamber 4, ie neither at the front end nor at the rear end of the piston skirt 2 or around the percussion rod 26 or the anvil 40, which considerably simplifies construction and testing.
- the piston jacket 2 and the compressed air storage jacket 22 of the compressed air storage device are made of the same material, namely an aluminum tube with an identical diameter and identical wall thickness, which extremely simplifies production.
- a feed pipe 28 is arranged, which extends from the flange 18 and a preferably in the center and axially through this through-opening to the rear end of the compressed air reservoir 16, where it transitions into a slight radial widening to form a shoulder 29 projecting radially outwards.
- the fluid-permeable membrane support 42 is arranged in this rear end of the feed tube 28 and in the step 29 formed on it, which in the present case is designed as a grid with a number of openings.
- An elastic control membrane 32 which sits in a membrane seat 44 on the inside of the cylinder cover 8 , rests against the back of the feed tube 28 and this membrane support 42 , which covers the end but does not close it.
- the control membrane 32 is a round, loose disc in the order of z. B. formed about 80 mm in diameter, which consists of a flexible material, such as fabric or fiber-reinforced rubber or flexible plastic.
- the cylinder cover 8 has a membrane seat 44 shaped to the size of the control membrane 32 in the form of a shoulder on the inside of the cylinder cover 8 .
- a curved recess is also formed in the cylinder cover 8 to form a rear pressure chamber 34 in the cylinder cover 8 .
- the rear percussion cylinder plate 8 also sometimes referred to as the "cylinder cover" is screwed to the front plate 6 by means of several, in this case four, screw bolts 36 arranged circumferentially spaced apart from one another.
- Figure 1 shows the percussion cylinder when filling the
- Compressed air accumulator 16 via a to the compressed air connection 10 connected and not shown air line.
- the compressed air represented by arrows flows through the compressed air connection 10 and the rear pressure chamber 34 past the peripheral edge between the diaphragm seat 44 into the compressed air reservoir 16 and fills it.
- the elastic control membrane 32 is straight and lies against the rear end of the feed tube and closes it media-tight.
- the compressed air accumulator 16 has reached a preset and optionally adjustable pressure.
- the control membrane 32 is still in contact with the rear side of the feed tube 28 and closes it in a media-tight manner.
- the impact cylinder is now ready for use.
- control membrane 32 can deform and goes from the straight closed position shown in FIGS. 1 and 2 to the arched open position shown in FIG.
- the tax membrane 32 free the rear end of the feed tube 28 so that the fluid or. the drive medium suddenly flows out of the compressed air reservoir through the diaphragm support 42 and the feed tube 28 into the piston chamber and also exerts pressure on the back of the piston 14, whereby the piston 14 against the spring force of the compression spring 24 against the shoulder 30 on the front plate 6 is thrown.
- the compression spring 24 In the striking position, the compression spring 24 is fully tensioned and the compressed air compressed in the front chamber escapes via an outlet channel.
- the compression spring 24 returns the piston 14 to the rear starting position, during which return the air compressed in the rear chamber escapes through a piston channel 46 which extends through the piston 14 from the front to the rear end.
- the piston channel 46 can have a reduced cross-section in order to avoid an undesirably rapid outflow of the fluid from the compressed air reservoir 16 into the front chamber and a resulting reduction in the impact force when the impact is triggered.
- the arrangement of the compressed air reservoir directly behind the piston chamber enables a significant reduction in the overall size of the percussion cylinder in terms of width and length, because there is no need for a second jacket surrounding the piston chamber and a shorter acceleration path for the piston until it hits the anvil or face plate.
- the length of the percussion cylinder can also be reduced by 25 percent or more compared to the prior art.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Percussive Tools And Related Accessories (AREA)
- Actuator (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020129424.7A DE102020129424B4 (de) | 2020-11-09 | 2020-11-09 | Schlagzylinder |
PCT/EP2021/081080 WO2022096741A1 (de) | 2020-11-09 | 2021-11-09 | Schlagzylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4208299A1 true EP4208299A1 (de) | 2023-07-12 |
EP4208299B1 EP4208299B1 (de) | 2024-06-19 |
Family
ID=78709397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21810944.5A Active EP4208299B1 (de) | 2020-11-09 | 2021-11-09 | Schlagzylinder |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4208299B1 (de) |
DE (1) | DE102020129424B4 (de) |
WO (1) | WO2022096741A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115400932A (zh) * | 2022-09-15 | 2022-11-29 | 哈尔滨工程大学 | 一种气动式微型激振器 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3819112A1 (de) | 1988-06-04 | 1989-12-14 | Netter Gmbh | Klopfer mit selbststeuerung |
DE4303484C2 (de) * | 1993-02-06 | 1996-02-08 | Steinmueller Gmbh L & C | Verfahren und Vorrichtung zum klopfenden Reinigen von Gegenständen |
JP4644507B2 (ja) * | 2005-03-29 | 2011-03-02 | カネキタ株式会社 | エアノッカ |
DE102009051089B4 (de) | 2009-10-28 | 2017-12-07 | Rosink-Werkstätten GmbH | Schlagzylinder |
DE102010034844A1 (de) | 2010-08-10 | 2012-02-16 | Georg Bründermann | Kraftvariabler, selbstschlagender Zylinder |
-
2020
- 2020-11-09 DE DE102020129424.7A patent/DE102020129424B4/de active Active
-
2021
- 2021-11-09 WO PCT/EP2021/081080 patent/WO2022096741A1/de active Search and Examination
- 2021-11-09 EP EP21810944.5A patent/EP4208299B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
WO2022096741A1 (de) | 2022-05-12 |
DE102020129424B4 (de) | 2024-06-20 |
DE102020129424A1 (de) | 2022-05-12 |
EP4208299B1 (de) | 2024-06-19 |
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